Via GamesRadar: "Friends, at last: we have a game in which you can kill a man with a medkit. Remember, Left 4 Dead's hordes aren't strictly zombies: they're people with crazy-rabies. One shot will rip a limb clean off, but they can survive a few close-up thwacks. And every weapon and item - including medkits - has a melee attack. Indeed, our latest chance to play four-player co-op led to an emergent minigame; we're calling it Zombie Tennis. Select the most humiliating item in your inventory, stand on either side of the last remaining zombie in a horde, and whack him back and forth between you until he collapses and dies."